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Topic: Formal Charge  (Read 4155 times)

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Offline loganro

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Formal Charge
« on: December 11, 2007, 05:10:16 PM »
Is the formal charge for the Br in BrO3- +2?  A friend said it is =1, but I don't see how he gets that.
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Offline loganro

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Re: Formal Charge
« Reply #1 on: December 11, 2007, 06:03:14 PM »
Any help would be greatly appreciated!
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Offline loganro

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Re: Formal Charge
« Reply #2 on: December 11, 2007, 08:56:17 PM »
Anyone?
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Offline renup

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Re: Formal Charge
« Reply #3 on: December 11, 2007, 10:02:16 PM »
The equation for Formal Charge is:

FC = Number of valence electrons in the FREE ALONE atom (central atom by itself) - Number of lone pair electrons - 1/2(number of bond-pair electrons)

In your case, you need to draw the lewis dot diagram for the molecule.

We know that the total valence electrons in BrO3- is 26.

So know we can draw the lewis dot.

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